CN206191238U

CN206191238U - Grease pump

Info

Publication number: CN206191238U
Application number: CN201621106212.9U
Authority: CN
Inventors: 马俊
Original assignee: Shenzhen Da Run Electromechanical Co Ltd
Current assignee: Shenzhen Da Run Electromechanical Co Ltd
Priority date: 2016-10-10
Filing date: 2016-10-10
Publication date: 2017-05-24
Anticipated expiration: 2026-10-10

Abstract

The utility model discloses a grease pump is applicable to the grease lubrication field. Pump body middle part is provided with the inlet port, and there are bottom and upper cover in pump body both ends, and pump body excircle is close to upper cover department and is provided with out the glib talker, goes out glib clearing hole and feeds through the interior step department of gross porosity, and the gross porosity section is provided with the spring in the pump body, the valve piston, and the pore section is provided with the piston rod slipper, and the piston rod stretches out the outer supporting part branch of the pump body and is provided with spring pedestal, big spring, spring top cap, is provided with the check valve on the play glib talker. The piston rod promotes the grease antedisplacement of grease pump pore section under the exogenic action, the end cap that the grease was pushed open in valve piston and the check valve arrives oil pipe, and valve piston and check valve end cap are closed behind the piston rod arrival terminal point, the initial point is got back to to the piston rod under the effect of big spring, circulate in with the grease suction chamber according to this in the vacuum of the downthehole production of the pump body. The utility model discloses the inhaling nature certainly of effectively having solved current grease pump is little, bulky, the structure is complicated, maintain trouble problem.

Description

Grease pump

Technical field

The utility model is related to a kind of ram type pump, is particularly applied to the plunger type grease pump in grease lubrication field.

Background technology

Plunger type grease pump common currently on the market relies primarily on plunger and is moved back and forth in cylinder body, makes seal operation The volume of cavity volume changes to realize oil suction, force feed.But it has also been found that there are problems that during long-term use, just It is more sensitive to the pollution of oil product, structure is more complicated, and cost is higher, in terms of practicality, existing grease pump is small from absorption, Volume is bigger than normal, is applied to still have certain limitation for can actually utilizing in the less equipment in space；Complex structure, zero Part is various, also results in maintenance trouble, and maintenance cost is high.

The content of the invention

In order to overcome existing grease pump from defects, this practicality such as absorption is small, volume big, complex structure, maintenance troubles A kind of new new grease pump of offer, the multiple fuel feed holes of grease pump use, small volume, simple structure, each zero matches somebody with somebody Part is relatively independent, easy to maintenance.

The utility model solves the method that its technical problem used：It is step through hole, pump housing two ends point in the pump housing Bottom and upper lid not being provided with, 4 fuel feed holes being set on the circumference hole wall of pump housing middle part, pump housing inner via hole is by gross porosity and carefully Hole two parts composition, gross porosity is built with spring, valve piston；The slipper of the built-in piston rod of pore, the support section of piston rod Stretch out outside the pump housing, the support section that piston rod is stretched out outside the pump housing is equipped with lid, spring pedestal, big spring, spring top cover successively, The pump housing is cylindrical to be welded with oil outlet near the position of upper lid, and oil outlet is by gross porosity in the elongated hole connection pump housing near the position of step Put, check valve is equipped with oil outlet.

Above-mentioned grease pump, the pump body is designed to step through hole, step through hole be divided into gross porosity part with Pore part, built with valve piston and spring, pore is built with piston rod for gross porosity.

Above-mentioned grease pump, 4 described fuel feed holes are arranged on the circumference hole wall of pump housing middle part, oil inlet design Into " horn mouth " shape, efficiently solve the problems, such as that existing grease pump is small from absorption, a filtering is designed at each oil inlet Impurity in net, effectively filtering grease.

Above-mentioned grease pump, the oil outlet is arranged on the cylindrical position near upper lid of the pump housing, the oilhole in oil outlet Communicated near the position of step with gross porosity in the pump housing by elongated hole, check valve is housed on oil outlet.

Above-mentioned grease pump, the bottom is screwed in the pump housing and is close on the outer face of gross porosity one end, bottom There are sealing and spring base.

In the gross porosity of the pump housing, spring one end is withstood on bottom, separately for above-mentioned grease pump, the spring and valve piston One end is enclosed within the afterbody of valve piston, and under normal-pressure situations, the head end of valve piston is pressed on the platform between gross porosity and pore On rank.

Above-mentioned grease pump, the slipper of the piston rod is distributed with 3 seal grooves, and each seal groove is built with 1 Individual sealing ring, piston rod support section stretches out pump housing outside, and the stroke range of piston rod is pump housing fuel feed hole side（Do not keep off completely Live at oilhole）With valve piston hole and rod aperture intersection, piston rod is moved toward gross porosity one end in the presence of external force, The reaction lower piston rod of big spring returns to initial position, so repeatedly reaching the effect of oil extraction and oil suction.

Above-mentioned grease pump, the upper lid is arranged on the outer face at pump housing pore end, has hole in the middle of upper lid, can be limited The moving range of position piston rod slipper, upper cap bore inside groove is equipped with dust ring, and dust ring can prevent dust and impurity from entering In the pump housing.

Above-mentioned grease pump, has hole in the middle of the spring pedestal, is enclosed within the middle of piston rod, against the locking screw of upper lid Silk.

Above-mentioned grease pump, the spring top cover is "T"-shaped, is locked at the afterbody of piston rod, and large end face is perpendicular to work Stopper rod.

Above-mentioned grease pump, the big spring is enclosed within piston rod support section, and its one end abuts spring pedestal, the other end Against spring top cover.

Above-mentioned grease pump, the check valve is locked on oil outlet, and check valve one end is fuel feed hole, and the other end is Oilhole, interstitial hole is equipped with plug and little spring, and plug moves back and forth the hole wall of scope in plum blossom-shaped, separately has 1 90 ° of bent sub to revolve Enter fuel-displaced nose end, one end of little spring is pressed on 90 ° of joints for screwing in valve body under normal condition, and the other end is enclosed within plug, The other end of plug is pressed on the step of fuel feed hole one end.

The beneficial effects of the utility model are：There are 4 fuel feed holes of " loudspeaker " shape, working stability, fuel feed hole good from absorption Screen pack is provided with, effectively the impurity in filtering grease；Small volume is not high for requirements of installation space；Simple structure, each zero It is relatively independent between accessory, if breaking down, it is only necessary to safeguard or change single spare and accessory parts, other parts are unaffected.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples：

Fig. 1 is that this uses new overall structure figure.

Fig. 2 is the non-working condition of grease pump, and numeral is expressed as in figure：1. the pump housing, 2. spring top cover, 3. big spring, 4 bullets Spring base, 5. on lid, 6. piston rod, 7. fuel feed hole, 8. valve piston, 9. spring, 10. bottom, 11. oil outlets, 12. check valves block up Head, 12. check valve bodies, 14. little springs, 15.90 ° of oil connections.

Fig. 3 is that piston rod is inwardly advanced under external force.

Fig. 4 is piston rod gradually return under the action of the spring.

Fig. 5 is that grease is sucked into and fills up in chamber from fuel feed hole.

Fig. 6 is that piston rod promotes grease to advance, and grease pushes the plug in valve piston and check valve open.

Fig. 7 is piston rod gradually return, the plug closure in valve piston and check valve.

Fig. 8 is that piston rod promotes grease to advance, and grease pushes the plug in valve piston and check valve open.

Specific implementation method

In figure 3, piston rod（6）Push ahead under external force, empty grease pump chamber air；In Fig. 4 pistons Bar（6）Support zone big spring（3）Propulsive thrust effect under, piston rod gradually return, valve piston（8）Closure, lubricating grease pump chamber It is interior in vacuum state；Piston rod in Figure 5（6）Return to initial position, in the presence of vacuum in lubricating grease pump chamber, grease from Fuel feed hole（7）It is sucked into and fills up in chamber；In figure 6 in the presence of external force, piston rod（6）Grease is promoted to advance, grease is pushed open Valve piston（8）Check valve is reached along oilhole（13）, and push the plug in check valve open（12）Flow to check valve（13）Outer oil pipe； Piston rod in the figure 7（6）In big spring（3）Propulsive thrust effect under gradually return, valve piston（8）Closure, in lubricating grease pump chamber In vacuum state；In fig. 8 in the presence of external force, piston rod（6）Grease is promoted to advance, grease pushes valve piston open（8）Along oil Hole reaches check valve（13）, and push the plug in check valve open（12）Flow to the oil pipe outside check valve.

Claims

1. a kind of grease pump, mainly by the pump housing（1）, valve piston（8）, piston rod（6）, 3 springs（3、9、14）, bottom （10）, upper lid（5）, spring pedestal（4）, spring top cover（2）, check valve（13）Composition, it is characterized in that：The pump housing（1）Inner chamber is platform Stepwise through hole, the pump housing（1）Two ends are respectively fitted with bottom（10）With upper lid（5）, the pump housing（1）It is distributed with the hole wall of middle part 4 fuel feed holes（7）, the pump housing（1）Intracavity through hole is made up of gross porosity and pore two parts, and gross porosity is built with spring, valve piston（8）； The built-in piston rod of pore（6）Slipper, piston rod（6）Support section stretch out the pump housing（1）Outward, piston rod（6）Stretch out pump Body（1）Outer support section is equipped with lid successively（5）, spring pedestal（4）, big spring（3）, spring top cover（2）, the pump housing（1） It is cylindrical to be close to upper lid（5）Position be welded with oil outlet（11）, oil outlet（11）The pump housing is connected by elongated hole（1）Interior gross porosity is leaned on The position of close-table rank, oil outlet（11）Place is equipped with check valve（13）.

2. grease pump according to claim 1, it is characterized in that：The pump housing（1）In be step through hole, step through hole It is divided into gross porosity part and pore part, the pump housing（1）4 fuel feed holes of radially uniform distribution on the hole wall in centre position（7）, fuel feed hole （7）It is designed to " horn mouth " shape, each fuel feed hole（7）Equipped with screen pack, the cylindrical close end of pore one end is welded with 1 Individual oil outlet（11）, oil outlet（11）It is communicated in gross porosity near the position of step by way of hole connects.

3. grease pump according to claim 1, it is characterized in that：Bottom（10）It is fixed on the pump housing（1）Near gross porosity one end Outer face on, bottom（10）There are sealing and support spring.

4. grease pump according to claim 1, it is characterized in that：The pump housing（1）Gross porosity built with spring（9）And valve piston （8）, spring（9）One end tooth is in bottom（10）On, the other end is enclosed within valve piston（8）Afterbody, under normal-pressure situations, valve piston （8）Head end be pressed on the step end face between gross porosity and pore.

5. grease pump according to claim 1, it is characterized in that：Piston rod（6）Sliding position 3 sealings are distributed with Groove, built with 1 sealing ring, normal operating conditions lower slider portion moves back and forth to reach supercharging each seal groove in pore Or the effect of decompression, piston rod（6）Support section stretches out the pump housing（1）Outside.

6. grease pump according to claim 1, it is characterized in that：Upper lid（5）There is hole centre, is enclosed within piston rod（6）Support Position is simultaneously fixed on the pump housing（1）On the outer face of pore one end, can be with limiting piston bar（6）The mobile model of slipper Enclose, upper lid（5）Hole inside groove is equipped with dust ring, and dust ring prevents dust and impurity from entering the pump housing（1）It is interior.

7. grease pump according to claim 1, it is characterized in that：Spring pedestal（4）There is hole centre, is enclosed within piston rod（6） Support zone, against upper lid（5）Lock screw.

8. grease pump according to claim 1, it is characterized in that：Spring top cover（2）For "T"-shaped, piston rod is locked at（6） The afterbody of support section, large end face is perpendicular to piston rod（6）.

9. grease pump according to claim 1, it is characterized in that：Big spring（3）It is enclosed within piston rod（6）Support section, its One end abuts spring pedestal（4）, the other end is against spring top cover（2）.

10. grease pump according to claim 1, it is characterized in that：Check valve（13）It is locked at oil outlet（11）On, unidirectionally Valve（13）By oil outlet（11）One end is oil inlet end, and the other end is oil outlet end, and interstitial hole is equipped with plug（12）And little spring（14）, Plug（12）The hole wall of circumference is in plum blossom-shaped, separately has 1 90 ° of bent sub to screw in fuel-displaced stomidium, little spring under normal condition （14）One end be pressed on screw in valve in 90 ° of oil connections（15）On, the other end is enclosed within plug（12）On, plug（12）It is another One end is pressed near fuel feed hole（7）On the step of one end.

11. grease pumps according to claim 1, it is characterized in that：Piston rod（6）The moving range of slipper is the pump housing （1）Fuel feed hole（7）Side（Fuel feed hole is not blocked completely（7）Place）At gross porosity and pore boundary step.

12. grease pumps according to claim 1, it is characterized in that：Piston rod（6）It is that grease is promoted in the presence of external force Toward the movement of gross porosity one end, in big spring（3）Reaction lower piston rod（6）Initial position is returned to, so repeatedly reaching oil extraction With the effect of oil suction.